Binding-post.



C. BARBOUR.

BINDING POST.

APPLICATION FILED MAY 16, 1900.

Patented Mar. 2, 1909.

02M M13523, wwqmraqe part of this specification Figure 1 is a secof a post.

wires to be attached to t e stem.

when eras raiser orrrc.

CHARLES BARBOUR, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO STANDARD UNDER- GROUND CABLE COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF PENN- SYLVAN IA BINDING-POST.

Specification of Letters Patent.

Patented March 2,1909.

Application filed May is, 1908. Serial No. 433,262.

T 0 all whom it may concern: i

Be it known that 1, CHARLES BARBOUR, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, have invented or discovered certain new and useful Improvements in Binding-Posts, of which improvements the following is a specification. v

The invention described herein relates to certain improvements in binding posts which while adapted for general use, are especially useful in terminal heads for cables and has for its object a construction permitting of the post being easily secured to its support or base in such manner that it will not be liable to be loosened in such base in attaching and detaching wires.

The invention is hereinafter more fully described and claimed.

In the accompanying drawing forming a tional elevation of a terminal head having my improved binding post applied thereto, several modifications of the improvement being shown; Fig. 2 is a sectional elevation of a post on a plane indicated by the line lI-II Fig. 1 and Fig. 3 is an end elevation In the practice of my invention the body portion 1 of the binding post is made cylindrical and of a substantial diameter and is provided at a suitable point along its length with an angular portion 2 the angles or corners of such portion extending somewhat beyond or outside of the periphery of the body portion. This angular portion which is preferably located at one end of the body portion serves to prevent any rotation of the post when the body has been secured in the insulating base, which in the construction shown is the tubular terminal head 3 formed of rubber or other suitable insulating material. The body portion is provided with a threaded stem 4 which may be formed in tegral with the body portion, as shown in forms A, C, D, or the stem may be threaded for its entire length as at 4" and screwed into a threaded hole in the body 1 as shown at B. The threaded stem is made of suflicient length to receive one, two or more nuts 5, 6, etc, dependent u'on the number of In using this terminal or binding post a hole is bored through the base of a diameter of approximately equal to the external diameter of the body and a portion of the wall of this hole is ,shaped to receive the angular locking parts 2. When such locking part is at one end of the body 1 and such body is formed of rubber the seat or recess for the locking part can be-conveniently formed by heating a metal block of size and shape corresponding to the locking part 2 and burning or melting the recess in the inner or outer surface of the basedependent upon the position of the locking part. The

body portion 1 is made preferably of a.

length somewhat greater than the thickness of the base so that when placed in the hole in the base the projecting end of the body portion may be s read or upset onto the base thereby locking the body 'in the base by the projecting angular portion 3 and the turned or upset portion 7. In order to facilitate the formation of a head as 7 by spreading or upsetting, a thin peripheral wall is formed at the end of the body by recessing such end as shown.

In the construction shown at A, C, D, the wires are connected to the hinding'post by,

nuts as is customary, but if desired one of the wires may be soldered in a hole formed in the post and preferably through the stem.

Where the stem is screwed into the body portion it may be formed with an 'enlar 'ement or shoulder 9 between which and t e body portion provided at one end with angular locking portion and at the opposite end with a thm peripheral wall and a threaded stem.

4 In testimony whereof, I have hereunto set my hand.

CHARLES HARBOUR. Witnesses:

OHARLEs Bgsnnnrr, Farmers J. ToMAssoN. 

